Water closet ventilating device



April 16, 1935. c. L. c. NIELSEN ET AL WATER CLOSET VENTILATING DEVICE Filed Feb. 5, 1934 Patented Apr. 16, 1935 3 1,997,695

UNITED STATES PATENT OFFICE WATER CLOSET VENTILATING DEVICE Carl L. C. Nielsen and Anton K. Pedersen,

Luck, Wis.

Application February 5, 1934, Serial No. 109,769 2 Claims. (01. 4-213) This invention relates to ventilating devices for head and arms joining the arcuate portions and water closets. attached as by screws to the bottom of the seat. It is the general object of the invention to pro- A pipe 20 is attached to and communicates with vide a novel and improved ventilating device for the head l8 and this pipe runs rearwardly to a I water closets, which device is of cheap and simple point slightly beyond the rear edge of the seat I l 5 construction and is efiicient in operation. and has connected to its outer end one end of a The objects and advantages of the invention flexible conduit 2| preferably of armored conwill more fully appear from the following descrip-- struction. The other end of the flexible conduit tion, made in connection with the accompanying 2| is Connected to One p f a e-Way fitt n 10 drawing, wherein like reference characters refer 22 while a second port of the three-way fitting is 10' to the same or similar parts throughout the variconnected to pipe IS. The remaining port of the ous views and, in which, three-way fitting 22 is connected to one end of a Fig. 1 is a view in side elevation of a water pipe 23 which, in turn, is connected to a valve closet having a device of the present invention 24. This valve includes a valve seat 24a, a valve installed thereon, portions of aroom within which member 24b, a guide 240 for guiding the valve 15 the water closet is located being shown in vertimember to and from its seat, a valve stem 24d cal section; connected to the valve member 2412 and a bonnet Fig. 2 is a view in front elevation of a portion 24c through which the valve stem 24d extends. of the device with the seat raised; The valve stem 24d is screw threaded from its Fig. 3 is a plan view; upper end downwardly for some little distance 20 4 is a view taken chiefly in side elevation and carried on this screw threaded portion are a of a portion of the equipment, the view being pair of spaced stop nuts backed by lock nuts taken looking toward the opposite side of the 26. A" pipe 21 is connected to the valve 24 below I water closet than that shown in Fig.1 and some valve seat 2511 and runs downwardly to a f t 25 of the parts being shown in vertical section; and 28 to which is connected a pipe 29. Pipe 29 may ,25 Fig. '5 is a vertical section taken on the line run downwa ly through the floor 1 d it n- 55 of Fig. 3, as indicated by the arrows, nects with the intake port of a blower 30 driven Referring to the drawing, there is illustrated by an electric motor 3|. The blower 38 and a water closet having most parts of standard conmotor 3| may b Supported Shown from t 3 struction and including a bowl 6 supported on a floor l by means of a suitable bracket 32. A ."0 fioor l and to which water is supplied by a flush conduit 33 is connected to e discharge P Of conduit 8 from a tank 9 in the usual manner. A the blower and this conduit may run up along the vertical wall is designated by the numeral In. A w ll I0. s shown, to discharge in the o t id seat II is connected to the bowl 6 by means of a air.- In p ac e, other p p s 11. 21b t similar 35 hinge t2, the said hinge including a horizontal to the p p 2T but extending frOm' apparatus 35- pivot l2a. mounted on other water closets and similar to The bowl 6 is so molded near its upper rim the apparatus j described, may be p i that it forms anannular passage or air collecting a d thes p p s 21a, 21b m y be n cted t head l3 communicating with the interior of the t e fitting In other Words, it is fiontemplated bowl by means of a plurality of ducts ll. At the h t the single blower 0 and m t 3| w th the 40 rear of the bowl 6, the collecting head l3 comoutlet pipe 33 will serve in connection with a municates with a passage l5 which runs t the number of ventilating devices mounted for use exterior rear wall of the bowl to receive therein with a pl y of Water Closets as n a Washan outwardly extending pipe l6, this pipe being room. 5 preferably screwed in place within a. nut ll Mounted on the top of the bowl 6 adjacent but molded into the bowl structure. preferably beyond one end of the hinge I2 is Mounted on the seat ll is a collecting head l8. a bracket 34 which has a downwardly offset arm This head, in the embodiment shown, comprises projecting rearwardly beyond the w 6 and a horseshoe-shaped tube closed at its two ends 'apertured to receive a reduced portion of the and having a multiplicity of perforations l8a bonnet 24a. The bonnet 24c has a flange which 50 formed therein along the lower portion of its bears against the said arm of the bracket 34, inner side. The seat II is provided with a groove so that the arm is clamped between the bonnet Ila. which partially receives the head l8 and the and the body of the valve 24 and the valve 24 head is attached to the seat as by means of small is supportedby the bracket. The forward end 5 clips 19 having arcuate portions underlying the of the bracket 34 is equipped with a pair of upwardly projecting ears within which a pivot pin 35 is mounted and a lever 36 is connected to the pivot pin 35, so that the lever has freedom for swinging movement relative to bracket 34. Lever 36 has a forwardly extending arm which projects forwardly of the pivot pin I2a of hinge I2 in the path of the seat ll, so as to normally underlie a rear portion of the seat. The lever 36 also has a rearwardly extending arm which is slotted to receive the valve stem 24d and the two stop nuts 25 are disposed one at either side of the lever 36 on the stem 24d.

The lever 36 carries a spring clip 31 within which a mercury tube electric switch 38 is held. A pair of wires 39 and 40 run from a wall socket 4| and the wire 39 is connected to one contact of the mercury tube switch 38, while wire 40 runs to one contact of the electric motor 3I-. Another wire 42 runs from the other contact of the mercury tube switch 38, to the other terminal of the motor 3|. Similar electrical circuits will be set up to the motor through switches 38 used on other water closets, if a plurality of water closets are to be served by the single blower 38 and electric motor 3|.

Attached to the bottom of the seat ll near the forward end of the same and in position to strike the top of the bowl 6 when the seat II is swung downwardy from its upper position, shown in Fig. 2 to the position shown in Figs. 1 and 5, are a pair of coiled springs 43 which normally resiliently support the seat in slightly upwardly tipped relation from the horizontal. As weight is placed on the seat, however, these springs will compress so as to allow the seat to swing slightly downwardly and it is this movement imparted to the seat that opens the valve 24 and closes the switch 33 to establish the electrical circuit to the motor 3|. The lever 36' is normally held in the position shown in Figs. 1, 4 and 5 so that when the seat is tipped as there shown to its normal position of rest on the bowl 6, when the seat is unoccupied, the valve 24 is closed and the mercury in the tube 38 is held by gravity at the end of the tube opposite that carrying the two contacts. As the seat is occupied, however, so that weight is placed upon the same, movement of the seat to the horizontal position swings the lever 36 and causes the valve stem 24d to rise, thereby carrying the valve member 24b away from its seat 24a. Simultaneously the mercury in the tube 38 will be carried by gravity to the end of the tube within which the tube contacts are mounted to close this switch.

When the motor 30 is set in operation and the valve 24 is opened, the blower will cause the air and gases within the bowl 6 to be drawn into the two collecting heads I 3 and I8 from whence the air and gases will be carried through the several conduits and pipes through the valve 24 to the blower 38 and the blower will exhaust the air and gases through the conduit 33. The bowl will thus be automatically ventilated whenever it is occupied. It will be observed that the valve 24 will close andthe switch 38 will open to stop the action of the blower when the weight upon the seat is relieved. By provision of the valve 24, it will be seen that the blower can be utilized for drawing the air from the collecting heads applied to different water closets without affecting the operation of the ventilating device applied to the particular water closet illustrated. As the conduit 2| is flexible, the seat II can be freely swung about its pivot l2a.

The device of the invention has been demonstrated in actual practice and has been found to be successful for the purposes intended.

It will, of course, be understood that various changes may be made in the form, details, arrangement and proportions of the various parts without departing from the scope of the present invention, which, generally stated, consists in the matter shown and described and set forth in the appended claims.

What is claimed is:

l. The combination of a water closet having a bowl and seat hingedly connected thereto, means normally holding said seat in slightly raised position from said bowl, said seat being depressible against said bowl as weight is placed thereon, a perforated receiving head carried by said seat, a conduit connected to said head and extending therefrom, a blower, an electric motor for driving said blower, said conduit communieating with the intake of said blower, an electrical circuit for said motor, a member secured to and extending rearwardly from said seat beyond the pivot of said seat so as to tilt as said seat is depressed, and a suitably mounted switch actuatable by tilting movement of said member and arranged to be closed by tilting thereof occasioned by depression of said seat, said switch being connected in said circuit.

2. The structure defined in claim 1. and a valve in said conduit actuated by said rearwardly extending member so as to open as said seat is depressed.

CARL L. C. NIELSEN. ANTON -K. PEDERSEN. 

